The purpose of this circuit, which we found in the November 1986 Radio Electronics issue, is to determine the voltage across a zener diode. Several test currents can be selected.
Employing the XR2206 IC, this circuit was found in the May 1977 issue of Radio Electronics...
This circuit was found in a 90s EDN. It activates a protection relay in case of reversing the...
This circuit was obtained from a 90s Radio Electronics. The integrated circuit used HAA11508 is not...